Knitr cache file

This cache file stores the results of running each of the code chunks in manuscript.Rmd and supplement.Rmd, see http://yihui.name/knitr for details on caching.本缓存文件存储了运行manuscript.Rmd与supplement.Rmd中所有代码块所得的结果，有关缓存机制的详细说明可参阅http://yihui.name/knitr。